Have you read the documentation on the links I mentioned?

Over and over. It's gibberish. All that was needed was to have changed the login path.

If you had installed Elgg 3 then I would have given you 2 lines of code and that's it. 

In your case, I need to take the time to write a few lines of code for you, create a few files and put them into a separate custom plugin. 

All you need to do is read the documentation and do as I wrote above.